And most here will tell you to replace it with an OEM unit. The E-bay specials only last about 3 mos to 1 yr. I put 2 E-bay FSRs in my X (seller sent a new unit after the 1 replacement FSR failed, lasted 3 mos, 2nd one lasted 6 mos). the OEM unit costs around 3 times as much but has lasted almost 3 yrs now.

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'03 X5 4.4 Sport, last of the M62s (8-03 build date)
I believe in deadication to craftmanship in a world of mediocrity!